Immunostaining and Prevention of Naegleria fowleri Infections
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Questions and Answers

What type of organisms are amebas?

  • Viruses
  • Unicellular organisms (correct)
  • Multicellular organisms
  • Bacteria

How are clinically relevant amebas classified based on the location of their infections?

  • Based on their movement
  • Based on the location of their infections (correct)
  • Based on their size
  • Based on the color of their cysts

What distinguishes amebas from other unicellular Protozoa?

  • Their color
  • Their method of movement (correct)
  • Their size
  • Their shape

What is present in Entamoeba histolytica cysts?

<p>Pseudopods (A)</p> Signup and view all the answers

What is the focus of Module III regarding amebas?

<p>Diagnosis and treatment (B)</p> Signup and view all the answers

What will the students be tasked to do as an activity in the module?

<p>Watch a documentary (B)</p> Signup and view all the answers

What is the main molecular method used for diagnosing Acanthamoeba species?

<p>PCR (A)</p> Signup and view all the answers

Which of the following is a characteristic feature of Acanthamoeba trophozoites when viewed under phase-contrast microscopy?

<p>Prominent 'thorn-like' appendages (acanthopodia) (C)</p> Signup and view all the answers

What is a characteristic feature of Acanthamoeba cyst stage which contributes to its high resistance?

<p>Single large nucleus (A)</p> Signup and view all the answers

Which of the following is a portal of entry for Acanthamoeba infection?

<p>Break in the skin (B)</p> Signup and view all the answers

What is a common clinical manifestation of Acanthamoeba Keratitis?

<p>Severe ocular pain and blurring of vision (A)</p> Signup and view all the answers

Why is the diagnosis of Granulomatous Amoebic Encephalitis (GAE) often missed?

<p>Rarity of the disease and unfamiliarity with the pathogen (A)</p> Signup and view all the answers

How do trophozoites of Naegleria fowleri infect humans or animals?

<p>By penetrating the nasal mucosa and migrating to the brain via olfactory nerves (C)</p> Signup and view all the answers

Which treatment is mentioned for Naegleria fowleri infection?

<p>Amphotericin B in combination with clotrimazole (B)</p> Signup and view all the answers

What is an appropriate method for preventing Naegleria fowleri infection in endemic areas?

<p>Avoiding immersion of the head and accidental inhalation of water (B)</p> Signup and view all the answers

In which fluid are trophozoites of Naegleria fowleri occasionally found?

<p>Cerebrospinal fluid (CSF) (B)</p> Signup and view all the answers

How can Naegleria fowleri be effectively killed in swimming water?

<p>Using 1 ppm or higher concentration of chlorination (A)</p> Signup and view all the answers

Which process do Naegleria fowleri trophozoites use to replicate?

<p>$ ext{Promitosis}$ (A)</p> Signup and view all the answers

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